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Updated: Sep 18, 2025
Tissue-specific miRNA Expression Profiling in Mouse Heart Sections Using In Situ Hybridization
Published on: September 15, 2018
MicroRNAs' Impact on Heart Diseases
Marco Antonio Cordeiro1, Ana Elisa T S de Carvalho1, Regina Celia Spadari1
1Laboratory of Stress Biology, Department of Biosciences, Health and Society Institute, Campus Baixada Santista, Federal University of Sao Paulo (UNIFESP), Santos 11020-015, SP, Brazil.
Abstract:
Cardiovascular diseases (CVDs) are the most prevalent cause of global mortality, highlighting the importance of understanding their molecular bases. Recently, small non-coding RNAs (miRNAS) were shown to affect messenger RNA (mRNA) stability, either by inhibiting translation or by causing degradation through base pairing with mRNAs, being negative regulators of protein translation. Moreover, miRNAs modulate many signaling pathways and cellular processes, including cell-to-cell communication. In the cardiovascular system, miRNAs control functions in cardiomyocytes, endothelial cells, smooth muscle cells, and fibroblasts. Because miRNA expression was detected in the blood of patients with various cardiovascular diseases, they are considered attractive candidates for noninvasive biomarkers. This study reviews the literature on the role played by miRNAs in heart development and diseases. The findings suggest that miRNA regulation may offer new perspectives for therapeutic interventions in heart diseases.
Insights
MicroRNAs (miRNAs) regulate gene expression in the heart and are implicated in cardiovascular diseases (CVDs). Their detection in blood suggests potential as noninvasive biomarkers for heart conditions.
Area of Science:
- Molecular Biology
- Cardiology
- Genetics
Background:
- Cardiovascular diseases (CVDs) are a leading cause of death globally, necessitating research into their molecular underpinnings.
- MicroRNAs (miRNAs), small non-coding RNAs, regulate messenger RNA (mRNA) stability and protein translation, influencing cellular processes.
- miRNAs play critical roles in cardiovascular functions, affecting cardiomyocytes, endothelial cells, smooth muscle cells, and fibroblasts.
Purpose of the Study:
- To review the existing literature on the involvement of miRNAs in heart development and cardiovascular diseases.
- To explore the potential of miRNAs as noninvasive biomarkers for CVDs.
Main Methods:
- Comprehensive literature review of studies investigating miRNAs in cardiovascular contexts.
- Analysis of miRNA expression patterns in relation to heart development and disease states.
Main Results:
- miRNAs are key regulators of cardiac development and function.
- Altered miRNA expression is observed in the blood of patients with various cardiovascular diseases.
- miRNAs are involved in modulating signaling pathways and cellular communication within the cardiovascular system.
Conclusions:
- miRNA expression in blood holds promise for noninvasive diagnostic and prognostic applications in CVDs.
- Targeting miRNA regulation presents a potential therapeutic strategy for treating heart diseases.
- Further research into miRNA mechanisms can unlock new avenues for cardiovascular medicine.
